opal [opals](a mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity) noun [UK: ˈəʊp.l̩] [US: ˈoʊp.l̩]The opal deposit gives Mary enough to pay for the machinery and lead a comfortable enough life. = El yacimiento de ópalo le da a Mary suficiente para pagar la maquinaria y llevar una vida bastante desahogada.